Internal-combustion engine.



A. .fsonn. INTERNAL COMBUSTION nENGINE. Arrucmon mio nov;

Illlllu IN VEN TOR 2 SHEETS-SHEET l.

A. E. OSBORN.

INTERNALCOMBUSTION ENGINE.

APPucATlou msn Nov. l13. lsu.

UNITED 'STATES PATENT oEEioE.

ALBEN E. OSBORN, OF NEW YORK; N. Y.

INTERNAL-COMBUSTION ENGINE.

To all whom it may concern.'

lle it known that l, Anous E. (snoiisgmoVV nu improved lneclnuiism of theehuructer above indicated that shall be simple und durable in construction and increuse the power und eiiiciency of the engine With which it sliull be used. v

Other objects and adveutages of my invention will be set forth hereinafter, ond in order thut my invention may be thoroughly understood'l will now proceed to describe `niein, taken on the line 2--2 of Fig. 1, is

the sume in the following specification und then point out the novel features thereof in :ippeiided claims.

` Referring to the drawings:

i- Figure I1 is a. sectional elevation of un engine embodying one form of my invention. 1 A sectional plan view of the valve mecha" shown in Fig.. 2.

the views of Figs. 3 ande-being drawn to :t

4smaller seele thantlmt of-Figs. 1 iand 2.

-. Fig. 3 is n lview corresponding to Fig. l,

of ya .slightly modified valve mechanism 'which 4also embodies my invention.

Another modification 1S shown in Fig. 4,

."Still anothermodieation of my iuven tion is shown in- Fig. 54 which 1s a view-con constituteseu embodiment oif'finy' invention.

. Like",-,chstructersl ofreferenee designate oor-V ending,l parts in ill the -iguresl 'ligstrutllie f Figsrflend 2 comprises Specification of Letters Patent. l Patented De@ 18, 1917. Application led November 13, H114. Serial No. 871,365.

a cylinder 10, u piston 11 therein, u crunk easing 12, und u crunk shuity 13 to which the piston is operutively connectedby u rod 14.

The cylinder l1 is slirrounded by u waiter jacket 15, und. is' enlarged :it one side to forni u vulve cylinder 1.(3 which is perullel to the rnuin cylinder. A piston vulve 17 operates within the cylinder 16.

In addition to. the piston valve there is u rotary vulve' 18, both of. the vvulves 17 und 18 being driven from the crunk shaft b suitable gearing 2() shown in dotted lines in -Fig. 1; The engine is provided with two admission ports 21 und 22 which ure interconnected by ai single supply pipe 23. An exhaust port 24 is located between the two I.idmission ports and communicates with un exhaust pipe 25 having two bronches 2G und 27 which ure located one on euch side ot the pipe 23.

The admission part 21 is governed by the rotary valve 18 as well us the piston vulve 17, while the port 24 is controlled solely by the piston valve 17,tl1e port 22 being'4 controlled by the main ton valve 17.-

Either of the admissionl ports muy be considered the principal port und the other .the auxiliary port, but for convenience I will refer to theV 'port 21 as the principal admission port and the admission port.

As clearly shown in Figs. 1 und 2, the vulves 17 and 18 ure both located so tliut they are not likely to become overheiited and furthermore cooled by the water jacket.

' Before describing the modified structure shown in the other figures, I Will'now describe tlie operation of Figs, 1 and 2.

Assuming thfitthe parts piston as well as the pisport 22 us en auxiliary the engine shown' in ired, the .piston 11 is no wsturtng, on yits Working stroke. lAt the end of this stroke the pistonvalve 17 which )peietesait one;-V

vaneed one-helfits stroke and uneoversthe admission port 21;. This port is closed, hovv- .l

ever,"by the rot'nryvel've 18 which operatesV 41.05l Duri-ng 'the exhaustst-roke'the piston vulve i 2 17A advances .to-the endjof its strokeend'l opens the port 24, permitting the burnt geses at one-quarter thespeedof the-crank shaft.

or air into au auxiliary`port from the crank' case as Ashovvn in Fig. 4. Furthermore, 1t is evident that the auxiliary port may as shown in, g. 15. The-auxiliary portma be controlled by apart of the' valve whic port, said piston va ve being. arranged tol controls themam'ports, as shown in Figs. 1, V

3 and5`4, 'or-byu separate valve as shovvn in should be understood that the principal I used 'as an exhaust' port while the exhaust port is used as an ad-' admission port may be mission port as this reversed connection of the inlet and exhaust is perfectly o eraf tive when the direction ofA rotation o the valve crank shaft is also reversed and isde'- sirable under certain conditions. lThus in the form` of my vinvention shown in 1 the port 24 may be in communication wit the fresh inlet charge through the pipe 25 while the ports 2l and 22 may be for the exhaust gases which can pass away through the pipe 23, a portion of these gases passing through theva'lve 18.

Various other structuralmodifications may be effected within the spirit and scope of my invention and I intend that only such' limitations be imposed as are indicated in the appended claims.

What I claimlis';

1. In an :internalA combustion engine, a main cylinder, a .piste operating therein, a valve cylinder communica-tin with the main cylinder at one end, a plston valve within the valve cylinder, and main and auxiliary admissionl ports and an exhaust lport all controlled vbyfsaid piston valve.'

2. In an internal combustion engine, a main cylinder, a piston. operating therein, a valve cylinder communicating With the main cylinder "at one end, a piston valve within theA valve cylinder, main and auxilia admission ports near opposite ends o the valve cylinder, and an exhanstportbetween the admisison piston valve.

3. In an internal combustionV engine, a

main cylinder, a valve cylinder adjacent and p rallel thereto and open-ing. into aV comm n chamber at one en`d, a piston in the main cylinder, a piston valve 1n the valve cylinder, means Aforreciprocating the piston vai/ve at one-half the speed ofthe main pis ton, an auxiliary admission port connecting the main cylinder and the valve cylinder. a main admission port communicatin with the valve cylinder adjacent lto the said common chamber, a rotary valve for controlling the main admission o ning, and an exhaust govern all of said ports.. v

4. A. valve mechanism for an lnternal combustion engine comprlslng'aslide valve,

main and auxiliary admission ports con- Y Landau l uncovered ythe sli ports.

ports all controlled 'by said` vber` opening'. into .t

trolled thereby and opening into the cyl-A indexat derent points in the piston stro e,

mission port inconjunction with the slide val'veftov o en ,said ort after it has been die valve.

5. In an internal lcombustion engine, a cylinder, a piston 'operatin therein, a chamf be4 a'nd-a. secondvv valve controlling the main adcontrolled l' either by the piston valve asf Vshown in Figs.' 1, 3 and 4, ora rotary valve bie'rf at the end of the cylin er, an admission port and an exhaust port adapted to be connected to said chamber,` an auxiliary admission port connected to 4said cylinder in po-' sition to be uncovered when the piston aproaches .the and of' its stroke'and a valve -lndependent of the cylinder for controlling all ofsaid ports; said valve. being adapted'- to close theauxiliary admission end 'of the workin stroke.

6. A valve mec anism for an internal combustion engine comprising a slide valve, an exhaust p'ort and main and auxiliary admission ports controlled by the slide valve,l and a second valve'controlling one of said admission ports in addition to the slide valve and a single'admission pipeconnected to port at the,

both said main and said auxiliary admission 7. A valve mechanism for an internal combustion engine comprising a cylindena chamber opening intothe cylinder at one end, a piston operating in the cylinder, an

auxiliary admission port adapted to be uncovered by the piston at the end of its outward stroke, a nia-in admission port conmunicating with said chamber a slide valve independent of the cylinder for governing the main and auxiliary admission ports, a

crank operatively connected to said piston,

a crank casing inc losing said crank and hav ing an opening governed by the slide valve,

'said slide valve being adapted to connect -said' auxiliary admissionport to said crank casing when said port is uncovered at theend of the suction stroke. l

A 8. A valve mechanism for an internal combustion engine Acomrising a cylinder, a chame cylinder at one end, a piston operating in the cylinder, an auxiliaryadinission port adapted to be uncov ered by the piston at the end of itsv outward stroke, a main admission .port communicat ing with said chamber, a slidavalve independent -oit `the cylinder for governing the main and auxiliary admission ports, acrank operatively connected to said piston, a crank casing inclosing said crank, said slide valve being adapted to connect saidauxiliary admission port to said crank casing when said` l port is uncovered at the end of the suction stroke, and a rotary valve for coperatin govern the main a with the slide valve to mission port. 9. In an internal combustion engine the combination rwithfa cylinder, three independent ports therefor, a power piston iso adapted lo reciprocate in theeeylinder, vulve nn-zum unll'nn :lllxilizlr'iv vulve adapted to open and eloeo om` oil" will ports, sniil vulve means being adapted to iinlependently conv- 5 llol a, Second of said perle nml to eonirol the thinl port in conjunction with the power piston.

l0. In un internal combustion engine, the combination with. :1 cylinder, three independ- 19 ont parte tlnrefor, :.1 power piston adapted to reoiprocale in the cylinder, a. main valve and an auxiliary vulve adapted to open and close one of .said p'ortS7 Suid lnyuin valve being adapted to control u Second (1f-said ports in 5 vonjunrtion with the power jsiision.

1l. 1n :in internal eomhustion enginel i-lile combination with i1 oylimlm', three inelepondent ports communicating there. 3th, n power piston mluptol to reoipro'uie in the go cylinder, o nmin valve adopted to control all of said ports, und an auxiliary valve adapted to coperate with the main valve in controlling one of said ports.

li ln an internal combustion engine, the combination with a cylinder, three independmit ports communicating therewith, a, power jpsion adapted to reciprocate in the rylirnler, :i 1min valve adapted to control-all o1 said ports, and un auxiliary valve adapted to cooperate with the main valve n controlling one of said ports, said power pision being adapted to coperatie with the lnuin valve in controlling another of 'said porte.

In testimony whereof I have hereunto set in r hand this 11th day of November, 1914., :in the presence of two subscribing Witnesses.

ALBEN E. OSBORN. Witnesses: R J. DleARBoRN, F. GRAVES.

vso 

